search for: gcross

Dear R-users, I am exploring disease spread in trees. I have locations for diseased trees in 2004 and 2005 and want to know whether the patterns are independent. I would like to use both the 'gcross' and 'kcross' functions (in spatstat). I imported the data from two text files and created point objects using as.ppp. I then created a marked planar point pattern using ppp. I am fairly sure that everything worked, because when I ask for information about the data file, I get marked...